PHOENIX -- The San Antonio Spurs' depth at guard took another hit Sunday when No. 2 pick Dylan Harper sustained a calf injury defending a Nick Richards dunk in the second quarter of a 130-118 loss to the Phoenix Suns.
The Spurs announced at halftime that Harper would be out for the rest of the game. He walked out of the arena on crutches wearing a walking boot on his left foot.
"I believe it's something with this calf, but I don't have anything as of yet," Spurs coach Mitch Johnson said after the game.
Harper appeared to injure his calf upon landing under the basket after failing to block Richards' dunk, which gave Phoenix a 48-37 lead with 5:02 left in the first half. Harper winced after walking toward the bench. Upon checking out, the rookie headed to the locker room with a member of San Antonio's medical staff.
The Spurs entered the matchup at PHX Arena already without veteran point guard De'Aaron Fox, who hasn't yet played in a game this season because of a hamstring injury suffered during the summer before training camp.
Harper, 19, played a total of 11 minutes against the Suns and contributed 12 points on 5-of-8 shooting. He entered the game fourth on the team in scoring (14.4), also averaging 4.6 rebounds, 2.4 assists and 1.2 steals in five games.
"Yeah, I hope the best for him, for sure," Victor Wembanyama said of Harper. "We've seen great things from him. It's actually been hard to believe how good he's played. But it happens. We have to be able to deal with injuries. But at the same time, we're going to get some guys back."
The loss was the first of the season for the Spurs, after they went a franchise-best 5-0 to open the campaign.